Are cell phone signal boosters useful?

Mobile phones have become an indispensable communication tool for people. Once the mobile phone signal is poor, people often feel annoyed. There are many reasons for poor mobile phone signals, such as the base station is far away from the location, indoor environment, mountainous area, etc. When you find that the mobile phone signal is not good, you can use a mobile phone signal booster, which can better amplify the mobile phone signal. Let’s take a look at this aspect.

Do cell phone signal boosters work?

It is useful, but the place where you install the outdoor antenna must have a good signal. I make this thing, and there is absolutely no problem with the effect. However, most of the amplifiers sold on the market now are GSM900MHz amplifiers, which can only amplify the 2G signals of China Mobile and China Unicom, and have no effect on the current 3G signals and China Telecom signals.

Selection considerations

The signal of the underlying cell is poor

There is a better signal on the outdoor streets and a poor signal indoors. This is the most common situation, mainly caused by the surrounding buildings blocking the base station signal.

Poor signal in rural and suburban areas

There is a weak signal outdoors and basically no signal indoors. The poor signal is due to the fact that base stations in rural and suburban areas are not dense enough and some places are far away from base stations, resulting in weak signals.

Large factories and villas have poor signal

There is a good signal on the streets outdoors, but basically no signal indoors. The signal is poor because the reinforced concrete inside the rooms of villas and factories makes it difficult for mobile phone signals with a frequency of around 900Mhz to penetrate, and are therefore blocked.

Poor signal at high level

The reasons why mobile phone signals are poor at high altitudes are different from the above reasons. In fact, the mobile phone signals at high altitudes are not bad, so why can't calls be made? This is mainly because high altitudes can receive signals from several nearby base stations. However, because there is no obstruction, the signal strength is similar, so the mobile phone will frequently switch between several base stations. This is the so-called "ping-pong effect." [1] In addition, the mobile phone may also receive signals from non-adjacent base stations. Since the mobile phone can only switch between adjacent base stations, it will cause the mobile phone to receive the signal from a base station with better signals but cannot switch to it because it is not adjacent, resulting in the so-called "island effect." It is reported that the ping-pong effect and island effect are difficult problems in mobile communications, and the solutions are different from the above situations.